CVE-2021-20206

一、漏洞信息
 漏洞编号：[CVE-2021-20206](https://nvd.nist.gov/vuln/detail/CVE-2021-20206)
 漏洞归属组件：[podman](https://gitee.com/src-openeuler/podman)
 漏洞归属的版本：0.10.1,3.4.4,4.5.1,4.9.4
 CVSS V3.0分值：
  BaseScore：7.2 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the  type  field in the network configuration, it is possible to use special elements such as  ../  separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as  reboot . The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
 漏洞公开时间：2021-03-27 06:15:12
 漏洞创建时间：2024-09-04 08:55:38
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-20206
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| secalert.redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |  |
| secalert.redhat.com | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 |  |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 | https://bugzilla.suse.com/show_bug.cgi?id=1181961 |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-20206 | https://bugzilla.suse.com/show_bug.cgi?id=1181961 |
| redhat_bugzilla | https://github.com/containernetworking/cni/pull/808 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://github.com/containernetworking/cni/pull/808 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://github.com/containernetworking/plugins/blob/master/go.mod#L10 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://github.com/containernetworking/plugins/blob/master/go.mod#L10 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:0799 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/security/cve/cve-2021-20206 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:1007 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:1005 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:1552 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:2438 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2021:3001 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2022:0492 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2022:1660 | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20206 | https://ubuntu.com/security/CVE-2021-20206 |
| ubuntu | https://github.com/containernetworking/cni/pull/808 | https://ubuntu.com/security/CVE-2021-20206 |
| ubuntu | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 | https://ubuntu.com/security/CVE-2021-20206 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2021-20206 | https://ubuntu.com/security/CVE-2021-20206 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2021-20206 | https://ubuntu.com/security/CVE-2021-20206 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2021-20206 | https://ubuntu.com/security/CVE-2021-20206 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2021-20206 |
| cve_search |  | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |
| cve_search |  | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 |
| github_advisory | https://pkg.go.dev/vuln/GO-2022-0230 | https://github.com/advisories/GHSA-xjqr-g762-pxwp |
| github_advisory | https://nvd.nist.gov/vuln/detail/CVE-2021-20206 | https://github.com/advisories/GHSA-xjqr-g762-pxwp |
| github_advisory | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 | https://github.com/advisories/GHSA-xjqr-g762-pxwp |
| github_advisory | https://github.com/containernetworking/cni/pull/808 | https://github.com/advisories/GHSA-xjqr-g762-pxwp |
| github_advisory | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 | https://github.com/advisories/GHSA-xjqr-g762-pxwp |
| mageia |  | http://advisories.mageia.org/MGASA-2023-0213.html |
| go | https://github.com/containernetworking/cni/pull/808 | https://github.com/golang/vulndb/blob/master/reports/GO-2022-0230.yaml |
| go | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 | https://github.com/golang/vulndb/blob/master/reports/GO-2022-0230.yaml |
| go | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 | https://github.com/golang/vulndb/blob/master/reports/GO-2022-0230.yaml |
| osv | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 | https://osv.dev/vulnerability/CVE-2021-20206 |
| osv | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 | https://osv.dev/vulnerability/CVE-2021-20206 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/containernetworking/cni/pull/808 |  | redhat_bugzilla |
|  |  | https://github.com/containernetworking/cni/pull/808 |  | ubuntu |
|  |  | https://github.com/containernetworking/cni/pull/808 |  | github_advisory |
|  |  | https://github.com/containernetworking/cni/pull/808 |  | go |
|  |  | https://bugzilla.redhat.com/show_bug.cgi?id=1919391 |  | nvd |
|  |  | https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  A flaw was found in libcni. A user may be able to change the  type:  field in a CNI configuration to an arbitrary path and could execute arbitrary binaries on a host.本软件包不受影响，github.com/containers/buildah 均为已修复版本
 openEuler评分：
  7.2
 Vector：CVSS：3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(4.9.4):不受影响
2.openEuler-20.03-LTS-SP4(0.10.1):不受影响
3.openEuler-22.03-LTS-SP1(0.10.1):不受影响
4.openEuler-22.03-LTS-SP3(3.4.4):不受影响
5.openEuler-22.03-LTS-SP4(3.4.4):不受影响
6.openEuler-24.03-LTS(4.9.4):不受影响
7.openEuler-24.03-LTS-Next(4.9.4):不受影响
8.openEuler-24.03-LTS-SP1(4.9.4):不受影响

修复是否涉及abi变化(是/否)：
  1.master(4.9.4):否
2.openEuler-20.03-LTS-SP4(0.10.1):否
3.openEuler-22.03-LTS-SP1(0.10.1):否
4.openEuler-22.03-LTS-SP3(3.4.4):否
5.openEuler-22.03-LTS-SP4(3.4.4):否
6.openEuler-24.03-LTS(4.9.4):否
7.openEuler-24.03-LTS-Next(4.9.4):否
8.openEuler-24.03-LTS-SP1(4.9.4):否

原因说明：
  1.master(4.9.4):
2.openEuler-20.03-LTS-SP4(0.10.1):
3.openEuler-22.03-LTS-SP1(0.10.1):
4.openEuler-22.03-LTS-SP3(3.4.4):
5.openEuler-22.03-LTS-SP4(3.4.4):
6.openEuler-24.03-LTS(4.9.4):
7.openEuler-24.03-LTS-Next(4.9.4):
8.openEuler-24.03-LTS-SP1(4.9.4):

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